Installng Turbotech Boost Control

[Noel]

Ok I have a bob stock R33 GTS-T (only mod being recently installed R34 SMIC)

I have a turbotech boost control & a boost gauge on its way to me in the mail & will be installing asap

Since car is basically stock i only want to run the std boost level (7psi) but all the time instead of the 5/7psi via the solanoid (which i will bypass completely)

Anyway i know there is a brass restrictor in the line from IC piping to t-peice

My question is should i leave this in or take it out? as turbotech is a kind of a restrictor itself

I have heard to get std boost using a turbotech you need to have screw wound right out & it is JUST hanging on so with restrictor out wouldn't it mean i would be able to screw Turbotech in a bit more thus being a bit more secure & stable & accurate?

Also re boost gauge...Is it simply a matter of putting a t-peice in the top vacuum line coming from that little black box on firewall on drivers side & bobs your uncle?

Cheers

Noel

Edited November 8, 2006 by Noel

[d00dz]

  Noel said:

Ok I have a bob stock R33 GTS-T (only mod being recently installed R34 SMIC)

I have a turbotech boost control & a boost gauge on its way to me in the mail & will be installing asap

Since car is basically stock i only want to run the std boost level (7psi) but all the time instead of the 5/7psi via the solanoid (which i will bypass completely)

Anyway i know there is a brass restrictor in the line from IC piping to t-peice

My question is should i leave this in or take it out? as turbotech is a kind of a restrictor itself

I have heard to get std boost using a turbotech you need to have screw wound right out & it is JUST hanging on so with restrictor out wouldn't it mean i would be able to screw Turbotech in a bit more thus being a bit more secure & stable & accurate?

Also re boost gauge...Is it simply a matter of putting a t-peice in the top vacuum line coming from that little black box on firewall on drivers side 7 bobs your uncle?

Cheers

Noel

re Boost guage Yes that is how you do it, it is pretty simple. Bob's not my uncle.. lol

Check http://www.skylinesaustralia.com/forums/in...howtopic=142207 for some pics of one way of putting a bleeder in.

[mad082]

i don't use the restrictor. holds 14psi pretty well.

[tigr33]

i recently installed a turbotech boost controller n ripped out the old solenoid, just used the tube off the turbo and the 1 going in2 the cooler piping....

as for the boost gauge, i d/c the 1 in the cluster (its goes to the plenum), the 2 power cables, 1 u earth and other i just tapped into the accessories on my ciggy lighter

tip: may want to get ur boost controller on first n make sure it runs right be4 u install the boost controller (just so u dont overboost it)

hope that helps

[Noel]

  mad082 said:

i don't use the restrictor. holds 14psi pretty well.

i heard if you take it out spool up will be a bit slower as wastegate creep increases...makes sense in re to std form via solanoid bleed but using turbotech should not affect this as it will be restricting flow itself thus decreasing creep just as brass restictor does correct?

[mad082]

yup.

and leaving the restrictor in means that the lowest pressure you can run is higher.

[Noel]

  tigr33 said:

i recently installed a turbotech boost controller n ripped out the old solenoid, just used the tube off the turbo and the 1 going in2 the cooler piping....

as for the boost gauge, i d/c the 1 in the cluster (its goes to the plenum), the 2 power cables, 1 u earth and other i just tapped into the accessories on my ciggy lighter

tip: may want to get ur boost controller on first n make sure it runs right be4 u install the boost controller (just so u dont overboost it)

hope that helps

so u left restrictor in place? what boost you running & how does it hold in re to creep/spiking/tailing off in higher rpms?

cheers

[Noel]

  mad082 said:

yup.

and leaving the restrictor in means that the lowest pressure you can run is higher.

Legend! that's exactly the information i was after...I might take it out then as i dont want to run much more than 7psi since i have stock dump & exhaust & I heard that the minimum boost with a turbotech is around 8-9psi but i am guessing thats with the restictor still in place.

Cheers

Noel

[Munkyb0y]

the best way to adjust that valve closest to stock setting is to blow thru the bottom nipple and tighten the bolt to the point where u can just, with quite a bit of effort, get the air to go out the side nipple.

[tigr33]

my boost is at 10psi n spikes to 12psi after 5500rpm

[crofte]

I used my pneumatic guage and squieze pump. The turbotech was opening at 9 psi straight into the wastegate actuator. Best way to carry out this simple test by far.

[mad082]

i used a similar method. i used a bike pump. but you have to be steady in how hard you push down. then you just fine tune it on the car.

[Noel]

seems like a good idea...how do you attach to pump?

[mad082]

i work in a bike shop so i have pumps with attatchments about the same size.

[Noel]

  mad082 said:

i work in a bike shop so i have pumps with attatchments about the same size.

AHH I SEE

[Noel]

fitted turbotech last night...feels like a new car!!!

First pulled it apart & put flat side of spring to ball bearing...then wound it in til screw just put pressure on spring...on car this was 6psi holding all the way to redline

wound it in a bit more til i got to just on 9psi & it stays there but bleeds to either 8psi or just under in higher revs depending on which gear...does not spike at all except if say i knock it back to 2nd it jumps a touch but nothing crazy

one question why does the boost bleed off a touch in higher revs?

(FYI i have left restrictor in original line)

Edited November 13, 2006 by Noel